On the 25th anniversary of Princess Diana’s tragic passing, we’re going behind castle walls to look at the extraordinary life and legacy of “The People’s Princess,” how destiny took her from the world too soon that tragic night in Paris, and how she not only reshaped the Monarchy but continues reshaping it today.

The Assassination Bureau has existed for decades (perhaps centuries) until Diana Rigg begins to investigate it. The high moral standing of the Bureau (only killing those who deserve it) is called into question by her. She puts out a contract for the Bureau to assassinate its leader on the eve of World War I.